Power Systems Critical visual voltage is the voltage at which None of these both 1 and 2 corona is just initiated corona is visible with blue or violet colour None of these both 1 and 2 corona is just initiated corona is visible with blue or violet colour ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 4, 0.4 100, 0.4 100, 10 4, 10 4, 0.4 100, 0.4 100, 10 4, 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The power generated by two plants are; P1 = 50 MW, P2 = 40 MW. If the loss coefficients are B11 = 0.001, B22 = 0.0025 and B12 = -0.0005, then power loss will be 6.5 MW 8.5 MW 4.5 MW 5.5 MW 6.5 MW 8.5 MW 4.5 MW 5.5 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 74.56 %. 79.33 %. 80.25 %. 78.96 %. 74.56 %. 79.33 %. 80.25 %. 78.96 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer in a transmission line can be obtained by increasing voltage level reducing reactance None of these either 1 or 2 increasing voltage level reducing reactance None of these either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The load current in short circuit calculations are neglected because both 1 and 2 short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents both 1 and 2 short circuit currents are greatly out of phase with load currents nether 1 nor 2 short circuit currents are much larger than load currents ANSWER DOWNLOAD EXAMIANS APP
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